189031875 has 40 divisors (see below), whose sum is σ = 317260944. Its totient is φ = 100080000.

The previous prime is 189031849. The next prime is 189031879. The reversal of 189031875 is 578130981.

It is not a de Polignac number, because 189031875 - 2⁷ = 189031747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189031879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 339097 + ... + 339653.

Almost surely, 2^189031875 is an apocalyptic number.

189031875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

189031875 is a deficient number, since it is larger than the sum of its proper divisors (128229069).

189031875 is an equidigital number, since it uses as much as digits as its factorization.

189031875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 189031875 is about 13748.8863185350. The cubic root of 189031875 is about 573.9116147544.

The spelling of 189031875 in words is "one hundred eighty-nine million, thirty-one thousand, eight hundred seventy-five".